We rely on the Merino 200 Oasis Long Sleeve Half-Zip Thermal Top from Icebreaker as our go-to baselayer for skiing. Made from 100% merino wool, it naturally regulates our body temperature, keeping us warm in the cold and cool as the sun shines. The half-zip design allows us to adjust our ventilation, while flatlock seams prevent chafing. The slim fit and stretchy fabric offers a snug, flexible fit for carving through powder and gliding down groomers. Naturally odor-resistant and quick-drying, this versatile top keeps us fresh and comfortable all day long.